Watch band



FIG. 1 is a front perspective view showing the new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left-side elevation view thereof;

FIG. 6 is a right-side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

Dashed lines, and the structures they depict, form no part of the claimed design. 

CLAIM The ornamental design for a watch band, as shown and described. 